Well... Sparky did not make it. I bumped the temp today. It is 89 F in the warm end on top of the paper towel, and 86.5 underneath the towel in the warm end.
The cool end is 84.4 on top of the towel, and 79.1 under the hide. The water is at the cool end.
It's always a challenge to get a temp gradient in such a small enclosure.
I set up the higher wattage bulb this morning, and this evening I found Sparky dead under the towel on the warm side of the tank (86.5).

I guess I may as well get out the dissecting scissors...
